An analysis of light transmission through a tapered hyperbolic secant waveguide is presented. Focusing and collimation conditions by this waveguide are obtained. The design of a beam-size controller device is proposed and compared with a similar device designed with nontapered hyperbolic secant waveguides.
© 1997 Optical Society of America
C. Bao, C. Gomez-Reino, and M. V. Perez, "Gradient-index tapered hyperbolic secant planar waveguide for focusing, collimation, and beam-size control," J. Opt. Soc. Am. A 14, 1754-1759 (1997)